Teach isearch to open invisible only if visible search failed?

Teach isearch to open invisible only if visible search failed?

[Leo]

Hello all Emacsen,

I use C-s/r for navigating around text a lot and I have found it slows
me down in large text shown in outline structure in outline or org mode
etc. So I wonder how to set up isearch so that it only opens invisible
text when search in the visible fails.

My attempt is like this but it doesn't work as smoothly as I'd like.

(setq search-invisible nil)
(add-hook 'isearch-update-post-hook
          (lambda () (when (and (or (not isearch-success)
                                    isearch-error)
                                ;; prevent infinite loop
                                (not (eq search-invisible 'open)))
                       (setq search-invisible 'open)
                       (isearch-search)
                       (isearch-update))))
(add-hook 'isearch-mode-end-hook
          (lambda () (setq search-invisible nil)))

I wonder if someone familiar with isearch can propose a better setup.
Thanks in advance.

Leo

Re: Teach isearch to open invisible only if visible search failed?

[Suvayu Ali]

On 05/12/10 07:41 AM, Leo wrote:
> Hello all Emacsen,
>
> I use C-s/r for navigating around text a lot and I have found it slows
> me down in large text shown in outline structure in outline or org mode
> etc. So I wonder how to set up isearch so that it only opens invisible
> text when search in the visible fails.

I know this is not the answer you are looking for, but why don't you use
sparse trees (`C-c /') and then use the usual org-mode navigation
commands (the likes of `outline-previous-visible-heading' or
`outline-next-visible-heading') ?

-- 
Suvayu

Open source is the future. It sets us free.

Re: Teach isearch to open invisible only if visible search failed?

[Leo]

On 2010-12-05 06:52 +0000, Suvayu Ali wrote:
> I know this is not the answer you are looking for, but why don't you use
> sparse trees (`C-c /') and then use the usual org-mode navigation
> commands (the likes of `outline-previous-visible-heading' or
> `outline-next-visible-heading') ?

That is org mode specific. I use org mode's fast command keys too but
C-s/C-r is almost what I use elsewhere.

Thanks for your reply.

Leo

Re: Teach isearch to open invisible only if visible search failed?

[Thierry Volpiatto]

Hi Leo,

Leo <sdl.web@gmail.com> writes:

> Hello all Emacsen,
>
> I use C-s/r for navigating around text a lot and I have found it slows
> me down in large text shown in outline structure in outline or org mode
> etc. So I wonder how to set up isearch so that it only opens invisible
> text when search in the visible fails.

I have no setting for isearch as i don't use it or really few (i use
only ioccur) but why not always opening all headers with `show-all' like
ioccur does?

> My attempt is like this but it doesn't work as smoothly as I'd like.
>
> (setq search-invisible nil)
> (add-hook 'isearch-update-post-hook
>           (lambda () (when (and (or (not isearch-success)
>                                     isearch-error)
>                                 ;; prevent infinite loop
>                                 (not (eq search-invisible 'open)))
>                        (setq search-invisible 'open)
>                        (isearch-search)
>                        (isearch-update))))
> (add-hook 'isearch-mode-end-hook
>           (lambda () (setq search-invisible nil)))
>
> I wonder if someone familiar with isearch can propose a better setup.
> Thanks in advance.
>
> Leo
>
>
>

-- 
A+ Thierry
Get my Gnupg key:
gpg --keyserver pgp.mit.edu --recv-keys 59F29997 

Re: Teach isearch to open invisible only if visible search failed?

[Leo]

On 2010-12-05 07:32 +0000, Thierry Volpiatto wrote:
> I have no setting for isearch as i don't use it or really few (i use
> only ioccur) but why not always opening all headers with `show-all' like
> ioccur does?

I guess it is sort of a habit that varies from people to people. I
personally use isearch a lot though I love i/occur too.

Cheers.
Leo


-- 
Any Emacs contains an ad hoc, informally-specified, bug-ridden, slow
implementation of half of Common Lisp.

Re: Teach isearch to open invisible only if visible search failed?

[Thien-Thi Nguyen]

() Leo <sdl.web@gmail.com>
() Sun, 05 Dec 2010 06:41:40 +0000

   My attempt is like this but it doesn't work as smoothly as I'd like.

What is the unsmoothness?

Re: Teach isearch to open invisible only if visible search failed?

[Leo]

[-- Attachment #1: Type: text/plain, Size: 481 bytes --]

On 2010-12-05 11:52 +0000, Thien-Thi Nguyen wrote:
> () Leo <sdl.web@gmail.com>
> () Sun, 05 Dec 2010 06:41:40 +0000
>
>    My attempt is like this but it doesn't work as smoothly as I'd like.
>
> What is the unsmoothness?

I can get large traction of text highlighted as in this screenshot
http://imagebin.org/126334.

To reproduce this, with the setting posted previously, and isearch
"easy" from point-min in the file attached (make sure the body of
heading 'hide' is hidden).


[-- Attachment #2: test.org --]
[-- Type: text/plain, Size: 33 bytes --]

  feature


xyz


* hide
  least

[-- Attachment #3: Type: text/plain, Size: 59 bytes --]


Any idea how to improve the isearch setting?

Thanks.
Leo

RE: Teach isearch to open invisible only if visible search failed?

[Drew Adams]

> I use C-s/r for navigating around text a lot and I have found it
> slows me down in large text shown in outline structure in outline 
> or org mode etc. So I wonder how to set up isearch so that it only
> opens invisible text when search in the visible fails.

FWIW, in Isearch+ I bind a key (`C-+') to toggle invisible-text sensitivity.
The standard user option `search-invisible' controls whether it invisible-text
searching on or off by default.

IOW, I treat this the same as case-sensitivity (or full-word search or regexp
search or...any other search choice).

Let the user control what to search while searching.  To me, this is better than
some DWIM that tries to second guess what I want.  Why would I (a) *always* and
(b) *only* want to search invisible text after searching visible text fails?

http://www.emacswiki.org/emacs/IsearchPlus

Re: Teach isearch to open invisible only if visible search failed?

[Leo]

On 2010-12-05 15:19 +0000, Drew Adams wrote:
>> I use C-s/r for navigating around text a lot and I have found it
>> slows me down in large text shown in outline structure in outline 
>> or org mode etc. So I wonder how to set up isearch so that it only
>> opens invisible text when search in the visible fails.
>
> FWIW, in Isearch+ I bind a key (`C-+') to toggle invisible-text sensitivity.
> The standard user option `search-invisible' controls whether it invisible-text
> searching on or off by default.
>
> IOW, I treat this the same as case-sensitivity (or full-word search or regexp
> search or...any other search choice).
>
> Let the user control what to search while searching.  To me, this is better than
> some DWIM that tries to second guess what I want.  Why would I (a) *always* and
> (b) *only* want to search invisible text after searching visible text fails?
>
> http://www.emacswiki.org/emacs/IsearchPlus

Thanks for that. But since this is for my personal use, DWIM works for
in this case.

Leo